Support lifecycle statement: This is the final release under standard support for Exchange 2007, as the Exchange 2007 Mainstream Support has now ended. Extended Support for Exchange 2007 SP3 will end on 4/11/2017. Please see the Microsoft Support Lifecycle page for more information about Microsoft Support Lifecycle for Exchange 2007. Got questions about Microsoft Support Lifecycle Policy? Head over to Microsoft Support Lifecycle Policy FAQ.

Note for Forefront Protection for Exchange users For those of you running Forefront Protection for Exchange, be sure you perform these important steps from the command line in the Forefront directory before and after this rollup's installation process. Without these steps, Exchange services for Information Store and Transport will not start after you apply this update. Before installing the update, disable ForeFront by using this command: fscutility /disable. After installing the update, re-enable ForeFront by running fscutility /enable.

Forefront Protection for Exchange is very resource intensive, I found that it would often grind to a hold on my mail server and also after rebooting it your prevent exchange services from starting as it imbeds itself into exchange to perform forefront mail scanning.

Hi All, Yesterday we had got confirmation from MS that there is a regression bug on this rollup which affects XCONMultipart/Mixed attachments and they all appear Inline and not part of the message body. This is to corrected on the DLLs of HT servers – Microsoft.Internal.EmailMessage.dll and Microsoft.Exchange.Data.Transport.dll. It's so sad that we come to know this information only after we had put it across our customer environment this month. Please have a note. The resolution seems to be requesting a Hotfix with PSS.